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SAE-AISI D2 Steel vs. EN 1.4988 Stainless Steel

Both SAE-AISI D2 steel and EN 1.4988 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D2 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.0 to 16
34
Fatigue Strength, MPa 310 to 860
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 460 to 1160
430
Tensile Strength: Ultimate (UTS), MPa 760 to 2000
640
Tensile Strength: Yield (Proof), MPa 470 to 1510
290

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
6.0
Embodied Energy, MJ/kg 50
89
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 15
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 5940
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 72
23
Strength to Weight: Bending, points 24 to 46
21
Thermal Diffusivity, mm2/s 8.3
4.0
Thermal Shock Resistance, points 25 to 67
14

Alloy Composition

Carbon (C), % 1.4 to 1.6
0.040 to 0.1
Chromium (Cr), % 11 to 13
15.5 to 17.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.3 to 86.9
62.1 to 69.5
Manganese (Mn), % 0 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.7 to 1.2
1.1 to 1.5
Nickel (Ni), % 0 to 0.3
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0 to 1.1
0.6 to 0.85